I've been towing, launching with a 29' Class C, and a 22' C-Dory for the last 10 years and have had no problems. The Class C is on a Ford chassis with a 460 V8. I also have a 2' extended tongue on the trailer.
Backing the trailer is very doable, even in relatively tight spots and ramps that you have to dogleg to get into. A simple add on makes all the difference. I ran a fiberglass rod across the trailer (thru the holes in the
frame) at the rear of the frame, behind the fenders, just ahead of the tail of the frame. The rod sticks out beyond the fenders on either side. I have a bright colored ball on the end of each rod. If the trailer is lined up perfectly behind the motorhome you can just see each ball in the mirrors. Without this the trailer is obscured completely. With the ball set-up the attitude and placement of the trailer is always apparent and makes trailering and backing with a motorhome a piece of cake. It works works great for me.
You could carry that a step further and put a light on the end of the rods.
Good luck and enjoy!